Quantum Computing Inc. — DEFA14A Filings
4 DEFA14A filings on record
This page lists all DEFA14A filings submitted to the SEC by Quantum Computing Inc. (QUBT), sorted by most recent first. Each row links to the full filing on EdgarLookup. Quantum Computing Inc. has filed 4 DEFA14A documents with the SEC since 2019. To view all SEC filings by Quantum Computing Inc., see the full filings list.
All
10-12G
10-12G/A
10-K
10-K/A
10-Q
10-Q/A
144
144/A
3
4
4/A
424B3
424B5
8-A12B
8-K
8-K/A
CERT
CORRESP
D
D/A
DEF 14A
DEF 14C
DEFA14A
EFFECT
NT 10-Q
PRE 14A
PRE 14C
PRER14C
RW
S-1
S-1/A
S-3
S-3/A
S-3ASR
S-8
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13G
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-25-041188 | May 9, 2025 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-099993 | Nov 19, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-094138 | Nov 4, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-22-055783 | Sep 14, 2022 | — |